Date: Fri, 25 May 2007 19:34:24 -0400 From: Joe Marcus Clarke <marcus@marcuscom.com> To: attilio@FreeBSD.org Cc: Jeff Roberson <jroberson@chesapeake.net>, jeff@FreeBSD.org, Current@FreeBSD.org Subject: Re: Panic on -CURRENT after LDT changes Message-ID: <1180136064.94117.14.camel@shumai.marcuscom.com> In-Reply-To: <4657683E.6040107@FreeBSD.org> References: <1179962663.75721.6.camel@shumai.marcuscom.com> <20070523165051.G9443@10.0.0.1> <4655D5C1.2010905@FreeBSD.org> <1180022919.10757.24.camel@shumai.marcuscom.com> <3bbf2fe10705240930o10f37febt9fb5f0a46bd193c3@mail.gmail.com> <4657267C.2070306@marcuscom.com> <3bbf2fe10705251116h1a4606fg6250d917247a5143@mail.gmail.com> <46572970.5080201@marcuscom.com> <3bbf2fe10705251135j2b858529l964bf22285d5554e@mail.gmail.com> <3bbf2fe10705251209y658d1910rd62286388bccc092@mail.gmail.com> <4657357C.4050009@marcuscom.com> <4657683E.6040107@FreeBSD.org>
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[-- Attachment #1 --] On Sat, 2007-05-26 at 00:50 +0200, Attilio Rao wrote: > Joe Marcus Clarke wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > > > Thanks. I just finished building a PREEMPTION-less kernel. I'll hold > > off on the test until I get your patch. > > Hello Joe, > can you please try this patch: > http://users.gufi.org/~rookie/works/patches/sys_machdep.diff > > maybe using with and without PREEMPTION? With PREEMPTION yields a new crash: panic: blockable sleep lock (sleep mutex) system map @ /usr/src/sys/vm/vm_map.c:2395 Uptime: 2m11s Physical memory: 2022 MB Dumping 82 MB: 67 51 35 19 3 #0 sched_switch (td=0xc07d1020, newtd=0xc4c70360, flags=1) at /usr/src/sys/kern/sched_4bsd.c:933 933 sched_lock.mtx_lock = (uintptr_t)td; (kgdb) bt #0 sched_switch (td=0xc07d1020, newtd=0xc4c70360, flags=1) at /usr/src/sys/kern/sched_4bsd.c:933 #1 0xc0567a1d in mi_switch (flags=Variable "flags" is not available. ) at /usr/src/sys/kern/kern_synch.c:464 #2 0xc06c8c90 in scheduler (dummy=0x0) at /usr/src/sys/vm/vm_glue.c:724 #3 0xc052e676 in mi_startup () at /usr/src/sys/kern/init_main.c:250 #4 0xc0438e15 in begin () at /usr/src/sys/i386/i386/locore.s:348 #0 sched_switch (td=0xc07d1020, newtd=0xc4c70360, flags=1) at /usr/src/sys/kern/sched_4bsd.c:933 p = (struct proc *) 0xc07d0de0 #1 0xc0567a1d in mi_switch (flags=Variable "flags" is not available. ) at /usr/src/sys/kern/kern_synch.c:464 new_switchtime = 153236108634 td = (struct thread *) 0xc07d1020 p = (struct proc *) 0xc07d0de0 __func__ = "mi_switch" #2 0xc06c8c90 in scheduler (dummy=0x0) at /usr/src/sys/vm/vm_glue.c:724 p = (struct proc *) 0x0 td = Variable "td" is not available. I will rebuild without PREEMPTION, and let you know. Note: I am no longer have console access, so live debugging is out until Tuesday. Joe > > Thanks, > Attilio > -- PGP Key : http://www.marcuscom.com/pgp.asc [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQBGV3J/b2iPiv4Uz4cRAl3cAJ9HDl+80F1O7xneRaE0jemBumnIegCfewOM meFxon0yqGrQ06Pk21L/+q0= =DITI -----END PGP SIGNATURE-----
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